C# 시작하기 - DirectoryInfo

DirectoryInfo is a class in the System.IO namespace that provides instance methods for creating, moving, and enumerating through directories and subdirectories. It's similar to the Directory class but works with specific directory instances, allowing more detailed and advanced operations.

Key Properties:

• Name: Gets the name of the directory.
• FullName: Gets the full path of the directory.
• Parent: Gets the parent directory of a specified subdirectory.
• CreationTime: Gets or sets the creation time of the directory.
• LastAccessTime: Gets or sets the last access time of the directory.
• LastWriteTime: Gets or sets the last write time of the directory.

Common Methods:

1. Create:

   // Creates the directory
   DirectoryInfo dirInfo = new DirectoryInfo(@"C:\ExampleDirectory");
   dirInfo.Create();

2. Delete:

   // Deletes the directory
   dirInfo.Delete(true); // 'true' means delete recursively

3. Exists:

   // Checks if the directory exists
   if (dirInfo.Exists)
   {
       Console.WriteLine("Directory exists.");
   }
   else
   {
       Console.WriteLine("Directory does not exist.");
   }

4. GetFiles:

   // Gets the files in the directory
   FileInfo[] files = dirInfo.GetFiles();
   foreach (FileInfo file in files)
   {
       Console.WriteLine(file.Name);
   }

5. GetDirectories:

   // Gets the subdirectories in the directory
   DirectoryInfo[] directories = dirInfo.GetDirectories();
   foreach (DirectoryInfo directory in directories)
   {
       Console.WriteLine(directory.Name);
   }

6. MoveTo:

   // Moves the directory to a new location
   dirInfo.MoveTo(@"C:\NewExampleDirectory");

Example Usage:

Here’s an example demonstrating some of these properties and methods:

using System;
using System.IO;

class Program
{
    static void Main()
    {
        DirectoryInfo dirInfo = new DirectoryInfo(@"C:\ExampleDirectory");

        // Create the directory
        dirInfo.Create();
        Console.WriteLine("Directory created at: " + dirInfo.FullName);

        // Check if the directory exists
        if (dirInfo.Exists)
        {
            Console.WriteLine("The directory exists.");

            // List files in the directory
            FileInfo[] files = dirInfo.GetFiles();
            Console.WriteLine("Files:");
            foreach (FileInfo file in files)
            {
                Console.WriteLine(file.Name);
            }

            // List subdirectories in the directory
            DirectoryInfo[] subdirectories = dirInfo.GetDirectories();
            Console.WriteLine("Subdirectories:");
            foreach (DirectoryInfo subdirectory in subdirectories)
            {
                Console.WriteLine(subdirectory.Name);
            }
        }

        // Move the directory to a new location
        string newDirectoryPath = @"C:\NewExampleDirectory";
        dirInfo.MoveTo(newDirectoryPath);
        Console.WriteLine("Directory moved to: " + newDirectoryPath);

        // Delete the directory
        dirInfo = new DirectoryInfo(newDirectoryPath); // Update dirInfo to the new path
        dirInfo.Delete(true);
        Console.WriteLine("Directory deleted.");
    }
}